#include <iostream>
#include <string>

using namespace std;

struct Stu
{
    int a;
    double b;
    string c;
};

int main()
{
    Stu st1 = {5,3.5,"hello world"};
    auto [a,b,c] = st1;
    cout<<a<<endl;
    cout<<b<<endl;
    cout<<c<<endl;
}